Dental polishing cup



Sept. 14, 1937. E. L. CHOTT 2,093,006

DENTAL POLI SHING CUP Filed Sept. 3, 1935 fizzvzizii' Wil /26556.5: ZZQvar/ZZJ iaz, m A? M Patented Sept. 14, 1937 UNITED STATES PATENT OFFICE DENTAL POLISHING UP Edward L. Chott, Chicago, Ill., assignor of onehalf to Hugo J. Chott, Chicago, Ill.

Application September a, 1935, Serial No. 38,871

1 Claim. (or. 3259) This invention relates to dental polishing cups The operation of the device is such that the and more particularly to a ribbed rubber polishdentifrice may be held within the cup, that is,

ing cup for use in mechanical dentistry. within the cells or chambers l6, and when the One of the objects of my invention is to procup is rotated under the action of the driving vide a simple, practical, and inexpensive device mechanism and a slight oblique pressure is apof the character described. plied, the ribs or webs I4 will be caused to rub Another object is to provide a dental polishing against each other, resulting in a working of cup that is more efficient and is adapted to retain the dentifrice within the cup cells against the a dentifrice during the polishing operation. surface of the teeth which are being polished.

Other objects and advantages will become ap The cup having a continuous outer wall and the m 25 groove 1 by which the shank may be held in the and modification without departing from the parent from the following specification, referrim i3, the loss of dentifrice can be kept at a ence being had to the accompanying drawing, substantial minimum, and a considerable saving wherein: in dentifrice will result.

Fig. l is an enlarged view of a polishing cup It will be apparent from the foregoing that embodying my invention; the device is not only simple in construction and 15 Fig. 2 is a similar view but at right angles to inexpensive to manufacture, but also in its opthe view of Fig. 1; eration a more satisfactory and efficient result Fig. 3 is an enlarged view, partly in section, of is achieved. A better polishing result is obthe same, taken on line 33 of Fig. 1; tained, and a saving of dentifrice results and Fig. 4 is a view similar to Fig. 3, with a section permits of a polishing operation that is cleaner 2O taken along the line 4- of Fig. 3; and than has heretofore been possible.

Fig. 5 is a bottom view of the cup. While I have illustrated and described the pre- Referring more particularly to the drawing, ferred form of construction for carrying my in- I show a shank 6 having at one end thereof a vention into effect, this is capable of variation hand piece of a dentists instrument and a cutspirit of the invention. I, therefore, do not wish away portion 8 to provide for rotation of the to be limited to the precise details of construcdevice. At the other end of the shank 6 and tion set forth, but desire to avail myself of such suitably secured thereto is a polishing cup 9 variations and modifications as come within the which is generally cylindrical in shape and prefscope of the appended claim. 30

' edge l5 adjacent the central axis of the cup 9 erably consists of soft rubber or other similar Having thus described my invention, what I material. The cup 9 is provided with an interior claim as new and desire to secure by Letters chamber 10, the walls of which chamber have a Patent is:

en y arclla'te form H and provide a t A device of the character described comprising cylindrical W adjacent the Contact edge a rotatable shank, a flexible cup secured to said 35' rim A phlrality 9 ribs or Webs are shank, and a plurality of radial webs secured to cured to the Inner slde of the a1ng the the interior of said cup and having free edges t i surface these webs gxtendmg radlauy substantially meeting adjacent the axis of said mtenorly of the cup and haVmg an elongated cup whereby to provide a plurality of cells adaptand Shank The webs M provide a plurality ed to receive a dentifrice, said webs adapted to of cells or compartments 5 within the cup in rub together to force sa1d dentifrice out of sa1d which cells or compartments t dentifric may cells along said free edges to expedite the action be held or entrapped during the polishing of said deviceoperation. EDWARD L. CHO'I'I. 

